Made Of RPET Felt And Bamboo. Holds Pens, Pencils, Scissors, Erasers And Other Essentials. Lid Of Box Features Inch and Centimeter Ruler Markings. Elastic Band To Keep Lid On. Phone Stand Holds A Variety Of Phone Sizes For Easy Viewing. Recycled Polyester (rPET) is Obtained By Melting Down Existing Plastic Bottles And Other Material Sources To Create New Polyester Fiber. RPET Felt Is Made From Post Consumer Recycled Materials.